I think I'd be frightened to use it. I can picture a scene from a horror movie - character staggers out of bed, still half asleep, but in dire need of using the loo - doesn't turn on the lights, no need with green light emanating from bowl when lifted lid - sits down, sighing with relief at making it safely - unaware that bulb has broken and green light is really the luminescent emanation of the horrible monstor that is about to drag him down into the toilet.